void ToIndexedColor(byte[][] r, byte[][] g, byte[][] b) throws AWTException {
this.pixels_ = new byte[this.width_ * this.height_];
this.colors_ = new byte[768];
int colornum = 0;
for (int x = 0; x < this.width_; x++) {
for (int y = 0; y < this.height_; y++) {
int search;
for (search = 0; search < colornum; search++) {
if ((this.colors_[(search * 3)] == r[x][y])
&& (this.colors_[(search * 3 + 1)] == g[x][y])
&& (this.colors_[(search * 3 + 2)] == b[x][y])) break;
}
if (search > 255) {
throw new AWTException("Too many colors.");
}
this.pixels_[(y * this.width_ + x)] = (byte) search;
if (search == colornum) {
this.colors_[(search * 3)] = r[x][y];
this.colors_[(search * 3 + 1)] = g[x][y];
this.colors_[(search * 3 + 2)] = b[x][y];
colornum++;
}
}
}
this.numColors_ = (1 << BitUtils.BitsNeeded(colornum));
byte[] copy = new byte[this.numColors_ * 3];
System.arraycopy(this.colors_, 0, copy, 0, this.numColors_ * 3);
this.colors_ = copy;
}
public void Write(OutputStream output) throws IOException {
BitUtils.WriteString(output, "GIF87a");
ScreenDescriptor sd = new ScreenDescriptor(this.width_, this.height_, this.numColors_);
sd.Write(output);
output.write(this.colors_, 0, this.colors_.length);
ImageDescriptor id = new ImageDescriptor(this.width_, this.height_, ',');
id.Write(output);
byte codesize = BitUtils.BitsNeeded(this.numColors_);
if (codesize == 1) codesize = (byte) (codesize + 1);
output.write(codesize);
LZWCompressor.LZWCompress(output, codesize, this.pixels_);
output.write(0);
id = new ImageDescriptor((short) 0, (short) 0, ';');
id.Write(output);
output.flush();
}
